It makes sense that if S.H.I.E.L.D. never knew that it had been infiltrated by Hydra, that perhaps, Tony Stark did not realize that the plans to the Hulkbuster Armor that he and Dr. Banner had developed was compromised too. It makes sense for Hydra to develop the stolen schematics into their own suit to even the playing field for future battles against the Avengers, especially against the Hulk.This custom required me to remove the engines on the back of the suit in order for the Hydra cape to fit properly. That was the hardest part. The painting was pretty straight forward. I was pleasantly surprised when I realized that painting the one raised part on top of the Hulkbuster head actually made it look like the letter "H." That was a cool bonus! Hail Hydra!